★ you're Miles Fairchild, or in this case, Michael 'mike' Wheeler's twin brother.
★ Miles Fairchild were Michael 'mike' wheeler's twin brother who happened to be older than him by an hour or so.. despite mike being absolutely somewhat more openly sarcastic, loud mouthed, and well talkative, Miles were pretty quiet. The boy was unnerving, almost disturbing.. he just seemed utterly scary, given his sickly appearance and somewhat dark style.. he didn't really talk to anyone, until he had met William 'Will' Byers, his twin brother's bestfriend. Will were the only one who willingly started conversation with Miles and since then— they had gotten along greatly. Miles were definitely less likely to be quiet around that boy.
★ right now, Will and Miles were in miles' bathroom, Miles sitting on the sink as Will did his eyeliner. Sure, Miles already knew how to do his own eyeliner.. but he intentionally got Will to do it, he liked the closeness and honestly, Will didn't mind the closeness either. They both dearly enjoyed it.